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stent removing snare

The new stent removing snare is designed to streamline indwelling ureteral stent removal in the office, with new access, increased convenience and minimal anesthesia. The design’s goal is ease of use and minimizing set-up time and patient discomfort by eliminating the cystoscopy. The 18 F snare is designed to work best in the male urethraThe snare should not be advanced beyond the bulbous urethra. The snare is also available in a smaller size 16 F, which works better removing a stent from the female bladder, as it may require more manipulation.

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Key Benefits

The Stent Removing Snare allows for the non-visual removal of indwelling ureteral stents, without the use of cystoscopy. The instrument is designed to be passed over a guide wire if clinically needed.

Method of Use

Men (18F Snare should be used) – When the ureteral stent is inserted, the attached string should be left connected to the stent and a 2 cm diameter loop should be created in the string at the point where the string exits the urethra (see figure 1). The loop can be locked in place by placing several knots.

This loop will self-retract into the urethra, with a slight tug on the genitalia, where it comes to rest in the bulbous urethra or anterior urethra and it is not symptomatic. At time of removal, after the instillation of 5-10 cc of an an anesthetic lubricant, the snare is passed into a man’s urethra until the bulbous portion (see figure 2). Rotating the snare as it is slowly withdrawn will hook the loop at the end of the string and pull it out (see figure 3). Occasionally more than one pass is required. If multiple passes, usually 3, do not successfully engage the string loop, it is possible that that the loop could have retracted into the bladder and cystoscopic removal is required. In men the snare should not be passed beyond the bulbous urethra.

Women (16F Snare recommended, but 18F can also be used. If unsure of the angle of the course of the urethra, passage over a guide wire is recommended) – In women the loop is not in a confined space and engaging it may require more manipulation. It is suggested that more than one loop be made in the string to increase the chance of hooking one of the loops. The loop does not self-retract, but has to be pushed into the bladder with the scope or a well-lubricated hemostat.

The snare enters the bladder and is directed towards the side of the stent. A finger in the vagina can help with localization of the snare and the stent itself. The snare may grab the stent itself or one of the string loops. If the stent itself is engaged, a proprioceptive feedback tug will be felt. If the snare misses, repeat passes can be made. Cystoscopic removal is the fallback option.

Method of Use

Men (18F Snare should be used) – When the ureteral stent is inserted, the attached string should be left connected to the stent and a 2 cm diameter loop should be created in the string at the point where the string exits the urethra (see figure 1). The loop can be locked in place by placing several knots.

This loop will self-retract into the urethra, with a slight tug on the genitalia, where it comes to rest in the bulbous urethra or anterior urethra and it is not symptomatic. At time of removal, after the instillation of 5-10 cc of an an anesthetic lubricant, the snare is passed into a man’s urethra until the bulbous portion (see figure 2). Rotating the snare as it is slowly withdrawn will hook the loop at the end of the string and pull it out (see figure 3). Occasionally more than one pass is required. If multiple passes, usually 3, do not successfully engage the string loop, it is possible that that the loop could have retracted into the bladder and cystoscopic removal is required. In men the snare should not be passed beyond the bulbous urethra.

Women (16F Snare recommended, but 18F can also be used. If unsure of the angle of the course of the urethra, passage over a guide wire is recommended) – In women the loop is not in a confined space and engaging it may require more manipulation. It is suggested that more than one loop be made in the string to increase the chance of hooking one of the loops. The loop does not self-retract, but has to be pushed into the bladder with the scope or a well-lubricated hemostat.

The snare enters the bladder and is directed towards the side of the stent. A finger in the vagina can help with localization of the snare and the stent itself. The snare may grab the stent itself or one of the string loops. If the stent itself is engaged, a proprioceptive feedback tug will be felt. If the snare misses, repeat passes can be made. Cystoscopic removal is the fallback option.

Features Overview

High Quality Material

Top grade surgical steel

Both the instrument and the handle are autoclavable

The snare

Conical with increasing size between 16 -18 F.

Base of Cone

3 mm wide

Smooth

No sharp edges on the snare to minimize discomfort during passage.

Stent Removing Snare
Stent Removing Snare
Central Hole

For passage over a guide wire

Dual Purpose

This conical configuration also allows this instrument to be used as a dilator

Flexible

Flexible stem for tactile feedback

Includes

EVA cases, combining the protection of a hard case with the versatility and portability of a soft case

Pricing

$1,579 for full set (18F and 16F)

$879 per snare

Shipping: $50

SKU # 3301

Patent # 10,028,853

Uramix does not endorse any particular code for billing purposes. These codes are only provided for information purposes.

1,2,3 cms.gov

REMOVING A STENT​

Removing a stent with a stent removing snare.

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How to create a loop

How To Create A “Loop” In The String Attached To The Stent To Facilitate Stent Removal

How to create a loop

How To Create A “Loop” In The String Attached To The Stent To Facilitate Stent Removal

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PATIENT HAVING STENT REMOVED

Patient Having Stent Removed With A Stent Removing Snare

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